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Sergei Petrovich Trubetskoy by N. Bestuzhev. Portrait of Prince Sergei Petrovich Trubetskoy Museum of Private Collections in Pushkin Museum of Fine Arts Moscow fineartimages net html Bestuzhev Nikolai Alexandrovich PDold Sergei Petrovich Trubetskoy Drawings by Nikolay Bestuzhev Drawings in the Pushkin Museum Originals